universe@391: /*
universe@391:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@391:  *
universe@391:  * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
universe@391:  *
universe@391:  * Redistribution and use in source and binary forms, with or without
universe@391:  * modification, are permitted provided that the following conditions are met:
universe@391:  *
universe@391:  *   1. Redistributions of source code must retain the above copyright
universe@391:  *      notice, this list of conditions and the following disclaimer.
universe@391:  *
universe@391:  *   2. Redistributions in binary form must reproduce the above copyright
universe@391:  *      notice, this list of conditions and the following disclaimer in the
universe@391:  *      documentation and/or other materials provided with the distribution.
universe@391:  *
universe@391:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@391:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@391:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@391:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@391:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@391:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@391:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@391:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@391:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@391:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@391:  * POSSIBILITY OF SUCH DAMAGE.
universe@391:  */
universe@391: 
universe@391: #include "cx/allocator.h"
universe@511: #include <gtest/gtest.h>
universe@391: 
universe@513: TEST(Allocator, DefaultAllocator) {
universe@397:     cx_allocator_class *clazz = cxDefaultAllocator->cl;
universe@511:     ASSERT_NE(clazz, nullptr);
universe@391: }
universe@391: 
universe@513: TEST(Allocator, DefaultMalloc) {
universe@397:     void *test = cxMalloc(cxDefaultAllocator, 16);
universe@511:     ASSERT_NE(test, nullptr);
universe@391:     free(test);
universe@391: }
universe@391: 
universe@513: TEST(Allocator, DefaultRealloc) {
universe@397:     void *test = calloc(8, 1);
universe@421:     memcpy(test, "Test", 5);
universe@391:     test = cxRealloc(cxDefaultAllocator, test, 16);
universe@511:     ASSERT_NE(test, nullptr);
universe@511:     EXPECT_STREQ(reinterpret_cast<char *>(test), "Test");
universe@391:     free(test);
universe@391: }
universe@391: 
universe@513: TEST(Allocator, Reallocate) {
universe@414:     void *test = calloc(8, 1);
universe@421:     memcpy(test, "Test", 5);
universe@511:     int ret = cxReallocate(cxDefaultAllocator, &test, 16);
universe@511:     EXPECT_EQ(ret, 0);
universe@511:     ASSERT_NE(test, nullptr);
universe@511:     EXPECT_STREQ(reinterpret_cast<char *>(test), "Test");
universe@414:     free(test);
universe@414: }
universe@414: 
universe@513: TEST(Allocator, DefaultCalloc) {
universe@511:     char *test = reinterpret_cast<char *>(cxCalloc(cxDefaultAllocator, 8, 2));
universe@511:     ASSERT_NE(test, nullptr);
universe@511:     for (int i = 0; i < 16; i++) ASSERT_EQ(test[i], 0);
universe@391:     free(test);
universe@391: }
universe@391: 
universe@513: TEST(Allocator, DefaultFree) {
universe@397:     void *test = malloc(16);
universe@511:     EXPECT_NO_FATAL_FAILURE(
universe@511:             cxFree(cxDefaultAllocator, test);
universe@511:     );
universe@391: }
universe@514: 
universe@514: TEST(Allocator, FailingReallocate) {
universe@514:     // Mock an allocator that always returns nullptr on realloc
universe@514:     cx_allocator_class mock_cl;
universe@522:     mock_cl.realloc = [](
universe@522:             [[maybe_unused]]void *p,
universe@522:             [[maybe_unused]]void *d,
universe@522:             [[maybe_unused]]size_t n
universe@522:     ) -> void * { return nullptr; };
universe@514:     cx_allocator_s mock{&mock_cl, nullptr};
universe@514: 
universe@514:     void *test = calloc(8, 1);
universe@514:     memcpy(test, "Test", 5);
universe@514:     void *original = test;
universe@514:     int ret = cxReallocate(&mock, &test, 16);
universe@514:     // non-zero return code because of the failure
universe@514:     EXPECT_NE(ret, 0);
universe@514:     // the test pointer was not changed and still points to the same memory
universe@514:     EXPECT_EQ(test, original);
universe@514:     EXPECT_STREQ(reinterpret_cast<char *>(test), "Test");
universe@514:     free(test);
universe@514: }